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PETUNIA 'Ultra Red Star'

Image of Petunia 'Ultra Red Star' (ULTRA SERIES)

James H. Schutte

Family

Solanaceae

Botanical Name

PETUNIA 'Ultra Red Star'( ULTRA SERIES)

Plant Common Name

Grandiflora Petunia, Petunia, Ultra Red Star Petunia

General Description

The Grandiflora petunia 'Ultra Red Star' bears huge blooms on compact mounding plants. The velvety, funnel-shaped, bright red flowers have a prominent white midstripe on each petal, together forming a five-rayed star. Bloom begins early and continues all season. Unlike many Grandifloras, this cultivar is very weather-resistant and bounces back quickly after rain.

Hybrid petunias are garden standbys. Developed from several South American petunia species, these sun- and heat-loving annuals or tender perennials were among the first ornamentals to be bred for the bedding plant market in the 1950s. They have medium to fine, oval, mid- to dark-green leaves and fuzzy, sticky, scented stems. The pungent flowers attract butterflies and hummingbirds. New, improved hybrids such as those in the Ultra Series continue to be introduced.

Petunias are as easy to grow as they are pretty. They require ample sun and grow best in rich soil with good drainage, but also perform well in infertile soil. Petunias are a good choice for fall and winter planting in warm, frost-free zones. In colder regions, plant them after danger of frost has passed. They bloom best with regular fertilization and will continue to flower all season if spent growth is occasionally pruned back. Ultra Series petunias have a crisp, formal look and are good for beds, hanging baskets, window boxes and tubs. Plant them anywhere that brilliant, long-lasting color is needed.

Characteristics

  • AHS Heat Zone

    12 - 1

  • USDA Hardiness Zone

    9 - 15

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    10"-14" / 25.4cm - 35.6cm

  • Width

    15"-18" / 38.1cm - 45.7cm

  • Bloom Time

    Indeterminate

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Pollution, Salt

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Cushion/Mound-forming

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Red

  • Flower Color Modifier

    Bicolor

  • Fruit Color

    Sandy Brown

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    Yes

  • Bark or Stem Fragrant

    Yes

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bedding Plant, Container, Edging, Hanging Basket, Mixed Border, Rock Garden / Wall, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Hummingbirds, Butterflies

  • Self-Sowing

    Yes